A novel method for preparing epoxy-containing microcapsules via UV irradiation-induced interfacial copolymerization in emulsions

被引：79

作者：

Xiao, Ding Shu

Rong, Min Zhi ^{[1
]}

Zhang, Ming Qiu

机构：

[1] Zhongshan Univ, Inst Mat Sci, Guangzhou 510275, Peoples R China

[2] Zhongshan Univ, OFCM Inst, Sch Chem & Chem Engn, Key Lab Polymer Composite & Funct Mat,Minist Educ, Guangzhou 510275, Peoples R China

来源：

POLYMER | 2007年 / 48卷 / 16期

基金：

中国国家自然科学基金;

关键词：

microcapsules; epoxy resin; UV irradiation;

D O I：

10.1016/j.polymer.2007.06.018

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel method for producing epoxy resin-containing microcapsules via UV-initiated radical copolymerization in an epoxy emulsion was developed. Epoxydiacrylates and a polymerizable emulsifier were employed as the wall-formers, which tended to accumulate at the exterior layer of epoxy colloids during the emulsification process. Upon exposure to UV light, the shell phase consisting of the wall-formers was rapidly cured into solid to generate microcapsules with epoxy as the core substance. In this paper, the characteristics of the resultant rnicrocapsules, including size and size distribution, chemical features, surface morphology, thermal stability, core content, and reactivity with curing agent, were studied. Also, the factors influencing the preparation of microcapsules were analyzed. Moreover, the optimum synthetic conditions of UV irradiation to prepare the microcapsules were determined by orthographic factorial design. Compared to the conventional thermal initiation, the present UV-aided encapsulation saves time. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4765 / 4776

页数：12

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